package cn.tedu._07springaop.aop;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;

import java.util.Arrays;

@Aspect
@Component
public class LogAspect {
    @Before(value = "execution(public int cn.tedu._07springaop.aop.CalculatorImpl.*(..))")
    public void beforeMethod(JoinPoint joinPoint){
        String name = joinPoint.getSignature().getName();
        String args = Arrays.toString(joinPoint.getArgs());
        System.out.println("1.前置通知:"+name +"方法开始,参数为:x和x"+args);
    }
    @AfterReturning(value = "execution(public int cn.tedu._07springaop.aop.CalculatorImpl.*(..))",returning = "r")
    public void afterReturningMethod(JoinPoint joinPoint,Object r){
        String name = joinPoint.getSignature().getName();
        System.out.println("2.返回通知:"+name +"方法结束,结果为:"+r);
    }
    @AfterThrowing(value = "execution(public int cn.tedu._07springaop.aop.CalculatorImpl.*(..))",throwing = "ex")
    public void afterThrowingMethod(JoinPoint joinPoint,Throwable ex){
        String name = joinPoint.getSignature().getName();
        System.out.println("3.异常通知:"+name +"方法抛出异常:"+ex.getMessage());
    }
    @After(value = "execution(public int cn.tedu._07springaop.aop.CalculatorImpl.*(..))")
    public void afterMethod(JoinPoint joinPoint){
        System.out.println("4.后置通知");
    }


}























